Although we have not identified the genes controlling human life span, there is a genetic element called a telomere that clearly regulates the replicative life span of human cells in culture. A telomere is a simple DNA sequence that is repeated many times, located at the tips of each chromosome. Telomeres are not genes, but they are needed for the proper duplication of the chromosomes in dividing cells. (more…)
Hayflick suggested that the aging process was by a biological clock, which includes all living cells, controlled. The study found t ...
Although many possible explanations for the mechanism that underlies the Hayflick limit have been proposed, it is still not cle ...
Aging theories cover the physiological, genetic, biochemical properties of a typical organism, and the way these properties cha ...
Aging in human is a combination of two ageing processes: development or maturation, and senescence aging or decline. Developmen ...
Aging theories cover the biochemical, genetic, and physiological properties of a typical organism, and the way these propertie ...
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